Author Archives: Yaehob

About Yaehob

I live Belgium, I have been working in electronics & computer systems for ten years (currently exercised skills are mainly .NET applications and microcontroller based projects). This passion is also part of my free time as well as some subcontractor jobs, feel free to contact me! :-)

DS18B20 waterproof from ebay VS original from local retailer

Have you ever wondered what this kind of ‘cheap’ temperature sensor is worth?

ebay

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ESP8266 5V…12V voltage regulator

I’ve just received my ESP8266 expansion IO board but the pcb didn’t embed the 3.3V regulator (as expected according to the pictures from the eBay seller) 😦

As I have plenty of 5V, 9V and 12V salvaged power supplies laying around (and not a single 3.3V), I was very interested to use them with my ESP8266 ESP-07 module…

It was not a big deal to find out the needed regulator (with compatible pinout) but, as Google was not my friend this time, the operation deserves a few lines of blogging with IC reference… 🙂 Continue reading